Flexible shaft connection device of knapsack type single-edged trimmer

Abstract

The invention discloses a flexible shaft connection device of a knapsack type single-edged trimmer. The device comprises a back frame, a gasoline engine, a flexible shaft and a flexible shaft casing pipe, wherein the back frame and the gasoline engine are integrally connected; the flexible shaft passes through the flexible shaft casing pipe and is in clearance fit with the flexible shaft casing pipe; the gasoline engine is provided with a gasoline engine output shaft with an external thread; a key slot is formed in an inner hole of the gasoline engine output shaft; a connecting nut which can freely rotate is sleeved at one end of the flexible shaft casing pipe; the connecting nut is connected with the gasoline engine output shaft; a key joint is riveted at one end of the flexible shaft; the outer diameter of the key joint and the thickness of a key are in movable fit with the inner diameter and the key slot of the gasoline engine output shaft respectively; and a square joint is riveted at the other end of the flexible shaft, and is in transition fit with a square hole of an input shaft of a power transmission mechanism. Thus the flexible shaft conveniently and reliably transfers the power of the gasoline engine to a power transmission system of the trimmer in a long distance, so that an operator can carry the gasoline engine to operate the single-edged trimmer, the labor is saved, and the operation efficiency is also high.

Description

technical field [0001] The invention belongs to the field of garden machinery, and in particular relates to a flexible shaft connecting device of a backpack type single-blade trimmer. Background technique [0002] Most of the single-edged trimmers used for environmental greening and garden maintenance are portable in the prior art, that is, the operator holds the power unit-gasoline engine with one hand and controls the blade with the other hand during operation, which consumes a lot of energy, is prone to fatigue and low work efficiency. . If adopt knapsack type, allow operator to carry on the back of heavier gasoline engine, the problem that the power of this just exists gasoline engine needs to pass to the power transmission system of trimmer through long distance. Contents of the invention [0003] In order to solve the above problems, the present invention provides a flexible shaft connection device of a backpack type single-blade trimmer, which can conveniently and ...

AI Technical Summary

Problems solved by technology

[0002] Most of the single-edged trimmers used for environmental greening and garden maintenance are portable in the prior art, that is, the operator holds the power unit-gasoline engine with one hand and controls the blade with the other hand during operation, which consumes a lot of energy, is prone to fatigue and low work efficiency.

If the piggyback type is adopted, the heavier gasoline engine is carried on the operator's back, which has the problem that the power of the gasoline engine needs to be transmitted to the power transmission system of the trimmer over a long distance.

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